Posted 7/26/2024 09:12 (#10826845) Subject: Case IH 550 quadtrac randomly puffs smoke
Our 550 quadtrac randomly puffs smoke. No change in rpm’s or sound. Seems like it does it around 1700 to 1900 rpm’s. Get over 2000 rpm’s it’s not as bad. I have done injector cut out test. Tractor has 3800 hours. Wonder what else to check for? Humidity sensor? Engine wire harness?
Case IH 550 quadtrac randomly puffs smoke
